1,3,3-Trimethyl-2-[(1E,3E)-3-methyl-6-(trimethylsilyl)-1,3-hexadien-5-yn-1-yl]-cyclohexene CAS 228120-22-7
| CAS No. | 228120-22-7 |
| Molecular Formula | C19H30Si |
| Molecular Weight | 286.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,3,3-Trimethyl-2-[(1E,3E)-3-methyl-6-(trimethylsilyl)-1,3-hexadien-5-yn-1-yl]-cyclohexene (CAS 228120-22-7) is a high-purity analytical reference standard with the molecular formula C19H30Si and a molecular weight of 286.53 g/mol.
Structurally, 1,3,3-Trimethyl-2-[(1E,3E)-3-methyl-6-(trimethylsilyl)-1,3-hexadien-5-yn-1-yl]-cyclohexene (C19H30Si) contains an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 286.53 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C19H30Si |
| Molecular Weight | 286.53 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2022 |
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